Knife



FIG. 1 is a perspective view of a knife, showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a front view of thereof.

The broken lines illustrate environmental structure that forms no part of the claimed design. The dot-dot-dash broken lines represent the bounds of the claim and form no part of the claimed design. 

CLAIM We claim the ornamental design for a knife, as shown and described. 